Walton Company has measured its quality costs for the past two years. After the company gathers its quality cost data, it summarizes those costs using the four categories shown below: Prevention costs Appraisal costs Internal failure costs External failure costs Last Year $ 371,300 $ 471,700 $ 726,800 $1,155,000 This Year $ 656,500 $ 599,500 $ 470,000 $ 646, Required: 1. Calculate the total cost of quality last year and this year. Total cost of quality Last Year $ 2,724,800 This Year $ 2,372,000 2. For last year, calculate the cost in each of the four categories as a percent of the total cost of quality. (Round your percentage answers to 1 decimal place.) Last Year Prevention costs Appraisal costs Internal failure costs External failure costs Total percent 3. For this year, calculate the cost in each of the four categories as a percent of the total cost of quality. (Round your percentage answers to 1 decimal place.) This Year Prevention costs Appraisal costs Internal failure costs External failure costs Total percent 4a. Calculate the change in total cost of quality over the two-year period. Prevention and appraisal activities Internal and external failure costs The total cost of quality Increased Decreased Decreased